What is RTC or Real Time Clock for Raspberry PI like Devices
So, You know about Raspberry PI
and this is not good at all that your Raspberry PI needs active Internet connection when it boot to configure right Date and Time
.
This is where, RTC or Real Time Clock comes in view, there are many companies who build this device, but i will tell you about one of them, which i found most useful, cheapest and easy to use.